Re: [PATCH] pathspec: reserve some letters after a colon pathspec

Nguyen Thai Ngoc Duy [off-list ref] writes:

And maybe:

    . ':' to reach the superproject if user's inside a subproject. So
'::/foo' means foo at superproject while ':/foo' means foo in the
current project, both at root.

A magic with that meaning may be fine (or may be not---I don't care too
much about "because we could" at this point), but if you are going to use
':' as the magic introducer, you cannot use ':' as one of the magic
signatures, as it would make it ambiguous when you said '::'.  Did you
write a long-form with 0 spelled-out magic (perhaps to defeat some other
future settings like --option or config)?  Or did you mean that magic
signature?